Assessment of mobility and bio-availability of heavy metals in dry depositions of Asian dust and implications for environmental risk

Effects of Biochar on Cadmium Accumulation in Rice and Cadmium Fractions of Soil: A Three-Year Pot Experiment

“…The residual fraction is a fraction that may be held by crystal structure, and this fraction is not expected to be released in solution over a reasonable time span under the conditions normally encountered in nature (Tessier et al 1979), so it is believed to be the most stable fraction in soil (Huang et al 2012;Quan et al 2014;Lee et al 2015). The variation tendency of the Fe-Mn oxide bound fraction is increasing, and part of the results in the final year reached significance (Table 4).…”

“…Even though the rice fields are slightly polluted, agricultural production is still being carried out ; therefore, the guarantee of rice growth by the amendment can achieve better ecological, social, and economic benefits. Finally, the changes in the Cd fractions in soil, and the harm of Cd to plants, does not depend on the total amount, but the content of the available part in soil (Lee et al 2015), so a reasonable application rate of biochar should be able to not only reduce available Cd content, but also ensure the stability of total Cd in soil (Beesley et al 2011). We suggest that evaluation of Cd fractions in soil could achieve this objective.…”

Lead chromate detected as a source of atmospheric Pb and Cr (VI) pollution

“…The size of these spherical aggregates was usually several tens of μm in diameter. Microsized black carbon particles were detected in forms of spherules in the dry deposition of AD and NAD in the study area (Daejeon)23 and in the AD samples in Seoul24. Kim et al 24.…”

Dustfall Heavy Metal Pollution During Winter in North China

“…Current research on atmospheric dustfall mainly concentrates on pollution characteristics (Jiao et al 2013;Zhang et al 2014;Liang et al 2014), analysis of pollution sources (Tang et al 2011;Huang et al 2009), the risk assessment of ecological environment and human health Tang et al 2012) and SEM study (Ma et al 2014;Lee et al 2015). Research methods include substantially Pb isotope tracer method (Yang and Li 2014;Lee et al 2015), principal component analysis (PCA) (Huang et al 2009;Li et al 2010;Arruti et al 2011;Tang et al 2011), cluster analysis (CA) (Bahena-Manjarrez et al 2002;Huang et al 2009), enrichment factor (EF) (Huang et al 2009;Tang et al 2011) analysis, the accumulated pollution index method (Yang et al 2011), and health risk assessment (Yang et al 2011;Li et al 2014).…”

“…Research methods include substantially Pb isotope tracer method (Yang and Li 2014;Lee et al 2015), principal component analysis (PCA) (Huang et al 2009;Li et al 2010;Arruti et al 2011;Tang et al 2011), cluster analysis (CA) (Bahena-Manjarrez et al 2002;Huang et al 2009), enrichment factor (EF) (Huang et al 2009;Tang et al 2011) analysis, the accumulated pollution index method (Yang et al 2011), and health risk assessment (Yang et al 2011;Li et al 2014). All these methods are widely used in the analysis and evaluation of atmospheric dustfall pollution.…”